A control device includes a control section configured to obtain a distance measurement value, and estimate a relative position of a position changeable type communication device with respect to a target space based on the distance measurement value, the distance measurement value being obtained when at least one of a plurality of position fixed type communication devices and the position changeable type communication device perform wireless communication, and indicating a distance between the at least one position fixed type communication device and the position changeable type communication device, the plurality of position fixed type communication devices including a first position fixed type communication device that is fixed inside a target space and to at least one part included in the target space, and a second position fixed type communication device that is fixed to a part different from the at least one part.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A control device comprising a control section configured to obtain a distance measurement value, and estimate a relative position of a position changeable type communication device with respect to a target space based on the distance measurement value, the distance measurement value being obtained when at least one of a plurality of position fixed type communication devices and the position changeable type communication device perform wireless communication, and indicating a distance between the at least one position fixed type communication device and the position changeable type communication device, the plurality of position fixed type communication devices including a first position fixed type communication device that is fixed inside a target space that is a space partitioned by an object and to at least one part included in the target space, and a second position fixed type communication device that is fixed to a part different from the at least one part, and the relative position of the position changeable type communication device with respect to the target space being changeable.
2. The control device according to claim 1, wherein the control section obtains an angle at which a signal transmitted by the wireless communication from the position changeable type communication device arrives at the position fixed type communication device, and estimates the relative position based on the obtained angle and the distance measurement value.
3. The control device according to claim 1, wherein the control section decides whether or not the position changeable type communication device is located inside the target space based on an estimation result of the relative position of the position changeable type communication device with respect to the target space.
4. The control device according to claim 3, wherein, when at least one or more of the estimation results estimate that the relative position of the position changeable communication device is inside the target space, the control section decides that the position changeable type communication device is located inside the target space.
5. The control device according to claim 4, wherein the second position fixed type communication device is fixed to a part that has a perpendicular or facing positional relationship with a part to which the first position fixed type communication device is fixed.
6. The control device according to claim 4, wherein the at least one part included in the target space is a part that partitions the target space.
7. The control device according to claim 6, wherein the part that partitions the target space is a ceiling part or a floor part.
8. The control device according to claim 4, wherein the first position fixed type communication device is fixed to a position that is closer to a ceiling part than to a floor part, the ceiling part being an other part that partitions the target space, and the floor part being one of parts that partition the target space, and the second position fixed type communication device is fixed to a position closer to the floor part than to the ceiling part.
9. The control device according to claim 8, wherein the first position fixed type communication device is arranged at the ceiling part, and the second position fixed type communication device is arranged at the floor part.
10. The control device according to claim 8, wherein the first position fixed type communication device is arranged at the ceiling part, and the second position fixed type communication device is arranged at a side part that connects the ceiling part and the floor part.
11. The control device according to claim 4, wherein the plurality of the position fixed type communication devices are mounted on a movable body.
12. The control device according to claim 11, wherein the first position fixed type communication device and the second position fixed type communication device are arranged at positions at which the first position fixed type communication device and the second position fixed type communication device face each other sandwiching a seat provided inside the movable body.
13. The control device according to claim 1, wherein the first position fixed type communication device and the second position fixed type communication device are fixed according to a positional relationship that a straight line that connects the first position fixed type communication device and the second position fixed type communication device passes a specified shield that exists inside the target space.
14. The control device according to claim 1, wherein the plurality of the position fixed type communication devices are mounted on a vehicle, the position changeable type communication device is a device that a user who uses the vehicle carries to use, and the target space is a vehicle compartment that is a space provided to the vehicle for the user to get on the vehicle.
15. The control device according to claim 1, wherein, during the wireless communication performed by the position fixed type communication device and the position changeable type communication device to obtain the distance measurement value, a signal that uses an Ultra-Wide Band (UWB) is transmitted and received.
16. A control system comprising: a plurality of position fixed type communication devices that include a first position fixed type communication device and a second position fixed type communication device, the first position fixed type communication device being fixed inside a target space that is a space partitioned by an object and to at least one part included in the target space, and the second position fixed type communication device being fixed to a part different from the at least one part; and a control device configured to obtain a distance measurement value, and estimate a relative position of a position changeable type communication device with respect to a target space based on the distance measurement value, the distance measurement value being obtained when at least one of the position fixed type communication devices and the position changeable type communication device perform wireless communication, and indicating a distance between the at least one position fixed type communication device and the position changeable type communication device, and the relative position of the position changeable type communication device with respect to the target space being changeable.
17. A non-transitory computer readable storage medium that stores a program causing a computer to function as a control section configured to obtain a distance measurement value, and estimate a relative position of a position changeable type communication device with respect to a target space based on the distance measurement value, the distance measurement value being obtained when at least one of a plurality of position fixed type communication devices and the position changeable type communication device perform wireless communication, and indicating a distance between the at least one position fixed type communication device and the position changeable type communication device, the plurality of position fixed type communication devices including a first position fixed type communication device that is fixed inside a target space that is a space partitioned by an object and to at least one part included in the target space, and a second position fixed type communication device that is fixed to a part different from the at least one part, and the relative position of the position changeable type communication device with respect to the target space being changeable.
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February 1, 2021
February 25, 2025
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